These can and are performed as needed but are also part of the Solstice ceremonies. Further reading Hoffman, Walter James. "The Midewiwin, or 'Grand Medicine Society', of the Ojibwa" in Smithsonian Institution, U. S. Bureau of Ethnology Report, v. 7, pp. 149-299. (Washington, DC: Government Printing Office, 1891). Johnston, Basil. "The Society of Dawn\Waubunowin" in Ojibway Ceremonies, pp. 113–128. (Lincoln: University of Nebraska Press, 1990). Laufer, Berthold. The Indian Tribes of the Chicago Region, with special reference to the Illinois and the Potawatomi, Field Museum of Natural History Leaflet No. 24. (Chicago: 1938). References Anishinaabe culture Native American religion